27-JUNE-1951 :- Birth Of Mary McAleese , President Of Ireland.

Mary Patricia McAleese 
( 27 June 1951) is the eighth President of Ireland from 1997 to 2011. She was the second female president and was first elected in 1997 succeeding Mary Robinson, making McAleese the world's first woman to succeed another as president. She was re-elected unopposed for a second term in office in 2004. McAleese is the first President of Ireland to have come from either Northern Ireland or Ulster.

27-JUNE-1931 :- Birth Of Martinus J.G. Veltman , Nobel Prize winner.

Martinus J.G. Veltman
( June 27, 1931) is a Dutch physicist. He won the 1999 Nobel Prize for Physics for their development of a method of mathematically predicting the properties of both the subatomic particles that make up the universe and the fundamental forces through which they interact. Their work led to the discovery of a new subatomic particle, the top quark. He shared his prize with Gerardus ’t Hooft.

27-JUNE-1869 :- Birth Of Hans Spemann , Nobel Prize winner.

Hans Spemann
( June 27, 1869 - Sep 12, 1941) was an German embryologist who was awarded the Nobel Prize for Physiology or Medicine in 1935 for his discovery of the effect now known as embryonic induction, the influence exercised by various parts of the embryo that directs the development of groups of cells into particular tissues and organs.

27-JUNE-1938 :- Birth Of Bankim Chandra Chattopadhyay , India Writer , Composer Of Indian National Song.

Rishi Bankim Chandra Chattopadhyay 
(26 June 1838 – 8 April 1894) was a Bengali writer, poet and journalist. He was the composer of India's national song Vande Mataram, originally a Bengali and Sanskrit stotra personifying India as a mother goddess and inspiring the activists during the Indian Independence Movement. Chattopadhyay wrote 13 novels and several 'serious, serio-comic, satirical, scientific and critical treaties' in Bengali. His works were widely translated into other regional languages of India as well as in English.

25-JUNE-2011 :- Death Of Annie J. Easley , African-American Computer Scientist.

Annie J. Easley 

(April 23, 1933 – June 25, 2011) an African-American computer scientist, mathematician, and rocket scientist. She worked for the Lewis Research Center of the National Aeronautics and Space Administration (NASA) and its predecessor, the National Advisory Committee for Aeronautics (NACA). She was a leading member of the team which developed software for the Centaur rocket stage and one of the first African-Americans in her field.

Annie J. Easley spent her 34-year career working for the National 

Aeronautics and Space Administration (NASA). She started there as a "human computer." Later she became one of the first black computer programmers, working on alternative-energy technologies, energy-conservation systems, and the Centaur launch system. During her career Easley was transferred laterally three times, but did not receive any significant promotions.

25-JUNE-2009 :- Death Of Michael Jackson , King Of Pop.

Michael Joseph Jackson
(August 29, 1958 – June 25, 2009) was an American singer, songwriter, record producer, dancer, and actor. He was also known as the King of Pop, his contributions to music and dance, along with his publicized personal life, made him a global figure in popular culture for over four decades.

25-JUNE-1995 :- Death Of ernest Walton , Nobel Prize winner.

Ernest Thomas Sinton Walton 
(6 October 1903 – 25 June 1995) was an Irish physicist . He won the 1951 Nobel Prize for Physics for "the development of the first Nuclear Particle Accelerator, known as the Cockcroft-Walton generator". He share his Nobel Prize with Sir John Douglas Cockcroft of England.

24-JUNE-1971 :- Death Of John Boyd Orr , Nobel Prize winner.

John Boyd Orr, 1st Baron Boyd-Orr 
(23 September 1880 – 25 June 1971) known as Sir John Boyd Orr from 1935 to 1949, was a Scottish teacher, doctor, biologist and politician who received the Nobel Peace Prize for his scientific research into nutrition and his work as the first Director-General of the United Nations Food and Agriculture Organization (FAO). He was the co-founder and the first President (1960–1971) of the World Academy of Art and Science (WAAS).

25-JUNE-1944 :- Death Of Dénes Berinkey , Prime Minister Of Hungary.

Dénes Berinkey 
(17 October 1871 – 25 June 1944) was a Hungarian jurist and politician. He served as Prime Minister for two months in 1919.

24-JUNE-1894 :- Death Of Marie François Sadi Carnot , President Of France.

Marie François Sadi Carnot 
( 11 August 1837 – 25 June 1894) was a French politician and statesman.He was the fourth president of the Third Republic. He served as the President of France from 1887 until his assassination in 1894.

25-JUNE-1956 :- Birth Of Boris Trajkovski , President Of Republic of Macedonia.

Boris Trajkovski 
( 25 June 1956 – 26 February 2004) was the president and Supreme Commander of the Republic of Macedonia from 1999 to 2004.

25-JUNE-1936 :- Birth Of B.J. Habibie , President Of Indonesia.

B.J. Habibie
( June 25, 1936) is a Indonesian aircraft engineer and politician who was president of Indonesia (1998–99) and a leader in the country’s technological and economic development in the late 20th and early 21st centuries.

25-JUNE-1931 :- Birth Of V.P. Singh , Prime Minister Of India.

Vishwanath Pratap Singh 

(25 June 1931 – 27 November 2008) was a Indian politician and government official. He was the 8th Prime Minister of India (1989–90).Vishwanath Pratap Singh is known for trying to improve the lot of India's lower castes in his short term as Prime Minister. Singh was renowned for his obsession with honesty and his willingness to sacrifice office.

25-JUNE-1928 :- Birth Of Alexey A. Abrikosov , Nobel Prize winner.

Alexey A. Abrikosov
( June 25, 1928) is a Russian physicist. He won the Nobel Prize for Physics in 2003 for his pioneering contribution to the Theory of Superconductivity. He shared the award with Vitaly L. Ginzburg of Russia andAnthony J. Leggett of Great Britain.

25-JUNE-1980 :- Birth Of William Howard Stein , Nobel Prize winner.

William Howard Stein 
(June 25, 1911 – February 2, 1980) was an American biochemist. He won the Nobel Prize for Chemistry in 1972 for their studies of the composition and functioning of the pancreatic enzyme ribonuclease. He shared his Nobel Prize with Stanford Moore and Christian B. Anfinsen.

25JUNE-1907 :- Birth Of J. Hans D. Jensen , Nobel Prize winner.

Johannes Hans Daniel Jensen 

(25 June 1907 – 11 February 1973) a German nuclear physicist. He worked on the German nuclear energy project, known as the Uranium Club, in which he made contributions to the separation of uranium isotopes.Jensen shared half of the 1963 Nobel Prize for Physics with Maria Goeppert-Mayer for their proposal of the nuclear shell model.

25-JUNE-1864 :- Birth Of Walther Hermann Nernst , Nobel Prize winner.

Walther Hermann Nernst
(June 25, 1864 - Nov 18, 1941) was German scientist who was one of the founders of modern physical chemistry. His theoretical and experimental work in chemistry, including his formulation of the heat theorem, known as the third law of thermodynamics. He won the 1920 Nobel Prize for Chemistry for "in recognition of his work in thermochemistry". He contributed to electrochemistry, thermodynamics and solid state physics. He is also known for developing the Nernst equation.

25-JUNE-1993 :- Kim Campbell is sworn in as the first female Prime Minister of Canada.

Avril Phædra Douglas "Kim" Campbell is a Canadian politician, lawyer, university professor, diplomat, and writer. She served as the 19th Prime Minister of Canada, from June 25, 1993 to November 4, 1993. Campbell was the first, and to date, only female Prime Minister of Canada, the first baby boomer to hold that office, and the only Prime Minister born in British Columbia.

25-JUNE-1975 :- Prime Minister Indira Gandhi has a state of internal Emergency declared in India.

In India, "the Emergency" refers to a 21-month period in 1975–77 when Prime Minister Indira Gandhi unilaterally had a state of emergency declared across the country. Officially issued by President Fakhruddin Ali Ahmed under Article 352(1) of the Constitution for "internal disturbance", the Emergency was in effect from 25 June 1975 until its withdrawal on 21 March 1977. The order bestowed upon the prime minister the authority to rule by decree, allowing elections to be suspended and civil liberties to be curbed. For much of the Emergency, most of Gandhi's political opponents were imprisoned and the press was censored. Several other atrocities were reported from the time, including a forced mass-sterilisation campaign spearheaded by Sanjay Gandhi, the Prime Minister's son. The Emergency is one of the most controversial periods of independent India's history.

24-JUNE-1897 :- Birth Of Pandit Omkarnath Thakur , Indian Musician.

Omkarnath Thakur 
(June 24, 1897 - December 29, 1967), his name often preceded by the title Pandit, was an influential Indian educator, musicologist, and Hindustani classical singer. He is famously known as "Pranav Rang", his pen-name. A disciple of classical singer Vishnu Digambar Paluskar of Gwalior gharana.

24-JUNE-2014 :- Death Of Ramón José Velásquez Mujica , President Of Venezuela.

Ramón José Velásquez Mujica 
(28 November 1916 – 24 June 2014) was a Venezuelan political figure. He served as President of Venezuela between 1993 and 1994. He was an important historian, journalist, lawyer and politician.

24-JUNE-2004 :- Death Of Emilio Colombo , Prime Minister Of Italy.

Emilio Colombo 
(11 April 1920 – 24 June 2013) was an Italian politician and the Prime Minister of Italy from 1970 to 1972. In addition to having held top positions in Italian governments, he was also active in European politics. In 2003 he was appointed to be an Italian senator for life, a seat which he held until his death.

24-JUNE-2002 :- Death Of Pierre Werner , Prime Minister Of Luxembourg.

Pierre Werner
(Dec 29, 1913 - June 24, 2002) was an Luxembourgian politician . He was known as the “Father of the Euro”. He served as the Prime Minister of Luxembourg from 1959 to 1974 and again from 1979 to 1984 to lead the campaign for a single European currency, which he dubbed the “Euror” and first publicly advocated in 1960. In 1970 he was chairman of the European Economic Community committee that presented the Werner Report, an official blueprint for a monetary union of the EEC’s six members. A single monetary system finally took effect in 11 of the 15 members of the European Union in 1999, and a new currency, the euro, was introduced to the general public in 12 member states in January 2002. Werner, who was a member of the centre-right Christian Social People’s Party, also built Luxembourg into one of Europe’s most successful financial centres.

24-JUNE-1908 :- Death Of Grover Cleveland , President Of United States.

Grover Cleveland
(March 18, 1837 - June 24, 1908) was 22nd and 24th president of the United States (1885–89 and 1893–97) and the only president ever to serve two discontinuous terms. Cleveland distinguished himself as one of the few truly honest and principled politicians of the Gilded Age. His view of the president’s function as primarily that of blocking legislative excesses made him quite popular during his first term, but that view cost him public support during his second term when he steadfastly denied a positive role for government in dealing with the worst economic collapse the nation had yet faced. 

24-JUNE-1953 :- Birth Of William E. Moerner , Nobel Prize winner.

William Esco Moerner 
(born June 24, 1953) is an American physical chemist and chemical physicist with current work in the biophysics and imaging of single molecules. He is credited with achieving the first optical detection and spectroscopy of a single molecule in condensed phases, along with his postdoc, Lothar Kador.Optical study of single molecules has subsequently become a widely used single-molecule experiment in chemistry, physics and biology. In 2014 he was awarded the Nobel Prize in Chemistry "for the development of super-resolved fluorescence microscopy".

24-JUNE-1942 :- Birth Of Eduardo Frei Ruiz-Tagle , President Of Chile.

Eduardo Alfredo Juan Bernardo Frei Ruiz-Tagle 
( born June 24, 1942) is a Chilean politician and civil engineer who was President of Chile from 1994 to 2000. 

24-JUNE-1927 :- Birth Of Martin Lewis Perl , Nobel Prize winner.

Martin Lewis Perl
( June 24, 1927 - September 30, 2014) an American physicist. He received the 1995 Nobel Prize for Physics for discovering a subatomic particle that he named the "Tau", a massive lepton with a negative charge. The tau, which he found in the mid-1970s, was the first evidence of a third “generation” of fundamental particles, the existence of which proved essential for completing the so-called standard model of particle physics. Perl was jointly awarded the Nobel Prize with physicist Frederick Reines, who had discovered another subatomic particle, the neutrino, in the 1950s.

24-JUNE-1893 :- Birth Of Roy Oliver Disney , Co Founder Of Walt Disney Company.

Roy Oliver Disney 
(June 24, 1893 – December 20, 1971) an American businessman. Who was the partner and co-founder with his younger brother Walt Disney, of Walt Disney Productions, now known as The Walt Disney Company.

24-JUNE-1883 :- Birth Of Victor Francis Hess , Nobel Prize winner.

Victor Francis Hess
( June 24, 1883 -  Dec 17, 1964 ) an Austrian born physicist.He won the Nobel Prize for Physics in 1936 for his discovery of "Cosmic Rays high-energy radiation originating in outer space". He shared his prize with Carl D. Anderson.
His research with radioactivity and atmospheric electricity. For many years scientists had been unable to explain the source of an ionizing background radiation in the atmosphere that penetrated electroscopes sent aloft in balloons. It was assumed that the radiation must have its source on Earth, but preliminary findings suggesting that the radiation increased when measured at higher points above the Earth’s surface cast doubt upon this hypothesis. In a series of balloon ascents in 1911–13, Hess found that the radiation increased rapidly with altitude, and suggested it had extraterrestrial origins. In 1925, Hess’s theory was confirmed by Robert Andrews Millikan, who gave the radiation the name of cosmic rays. Cosmic-ray research soon emerged as an important branch of physics and led to the discovery of several new fundamental particles—including the positron, discovered by Anderson in 1932—as well as advances in astrophysics and cosmology.

24-JUNE-2010 :- The First Female Prime Minister of Australia Julia Gillard assumed office.

Julia Eileen Gillard is a former Australian politician ,She served as the 27th Prime Minister of Australia, and the Australian Labor Party leader from 2010 to 2013. She was the first woman to hold either position. She took the office on 24 June 2010.

23-JUNE-1980C:- Death Of Sanjay Gandhi , Indian Politician.

Sanjay Gandhi 
(14 December 1946 – 23 June 1980) an Indian politician. He was of Mrs.Indira Gandhi and belongs to the Nehru-Gandhi dynasty. During his lifetime he was widely expected to succeed his mother, Indira Gandhi as head of the Indian National Congress, but following his early death in a plane crash his elder brother Rajiv became their mother's political heir, and succeeded her as Prime Minister of India after her death.Sanjay was a dominant figure on indian political scene.

23-JUNE-1953 :- Death Of Dr. Syama Prasad Mukherjee , Fonder Of Bharatiya Jana Sangh.

Syama Prasad Mukherjee 
(6 July 1901 – 23 June 1953) an Indian politician, barrister and academician. He served as Minister for Industry and Supply in Prime Minister Jawaharlal Nehru's cabinet. After falling out with Nehru, Mukherjee quit the Indian National Congress and founded the nationalist Bharatiya Jana Sangh (which would later evolve into BJP) in 1951.

23-JUNE-2008 :- Death Of Arthur Chung , President Of Guyana.

Arthur Chung 
(January 10, 1918 – June 23, 2008) was the first President of Guyana from 1970 to 1980.He was the first ethnic Chinese head of state in a non-Asian country. During his time as President of Guyana, the office was that of a ceremonial head of state.

23-JUNE-1996 :- Death Of Andreas Papandreou , Prime Minister Of Greek.

Andreas G. Papandreou 
( 5 February 1919 – 23 June 1996) was a Greek economist, a socialist politician and a dominant figure in Greek politics.He served two terms as Prime Minister of Greece from 21 October 1981 to 2 July 1989 and from 13 October 1993 to 22 January 1996.

23-JUNE-1980 :- Death Of V. V. Giri , President Of India.

Varahagiri Venkata Giri 
(10 August 1894 – 23 June 1980) known as V. V. Giri, was the fourth President of the Republic of India from 24 August 1969 to 24 August 1974.He was Vice President of India in 1967. Following the death of President Zakir Hussain, Giri also served as Acting President of India from 3 May 1969 to 20 July 1969. In the Presidential election of 1969, he won as an independent candidate defeating Neelam Sanjiva Reddy.

23-JUNE-1943 :- Birth Of Vint Cerf , Father Of Internet , American Computer Scientist.

Vinton Gray "Vint" Cerf
( born June 23, 1943) is an American computer scientist and internet pioneer.Widely known as a "Father of the Internet," Vint is the co-designer with Robert Kahn of TCP/IP protocols and basic architecture of the Internet.

23-JUNE-1937 :- Birth Of Martti Ahtisaari , President Of Finland , Nobel Prize winner.

Martti Ahtisaari
(born June 23, 1937) is a Finnish politician and noted mediator, he  was the President of Finland from 1994 to 2000. In October 2008, he was awarded the Nobel Peace Prize "for his efforts on several continents and over more than three decades, to resolve international conflicts".

23-JUNE-1936 :- Birth Of Costas Simitis , Prime Minister Of Greek.

Konstantinos Simitis 
(born 23 June 1936), usually referred to as Costas Simitis or Kostas Simitis, is a Greek legal scholar politician he served as Prime Minister of Greece and was leader of the Panhellenic Socialist Movement(PASOK) from 1996 to 2004.

23-JUNE-1907 :- Birth Of James Meade , Nobel Prize winner.

James Edward Meade 
(23 June 1907 – 22 December 1995) was a British economist. He win the 1977 Nobel Memorial Prize in Economic Sciences with the Swedish economist Bertil Ohlin for their "path breaking contribution to the theory of international trade and international capital movements."

22-JUNE-2004 :- Death Of Bob Bemer , Computer Scientist.

Robert William Bemer 
(February 8, 1920 – June 22, 2004) a computer scientist best known for his work at IBM during the late 1950s and early 1960s. Bemer is the inventor of the words "Cobol," and "CODASYL," six ASCII characters, and the concepts of registry and escape sequences in character codes.He was the member of the committee that design COMTRAN language and produced the specifications for COBOL language. He also invented the term and defined the nature of the "software factory."Bob invented an approach to Y2K (Year 2000) date conversion, to avoid anticipated problems when dates without centuries were compared in programs for which source code was not available. This involved detecting six and eight character operations at run time and checking their operands, adjusting the comparison so that low years in the new century did not appear to precede the last years of the twentieth century.